This enables the SNMP server on the Search Appliance. With this enabled you can use SNMP monitoring tools to monitor the condition of the Search Appliance.
A few items of particular interest might be
What | OID (Object Identifier) |
Disk space | .1.3.6.1.4.1.2021.9 |
System load | .1.3.6.1.4.1.2021.10 |
Critical processes | .1.3.6.1.4.1.2021.2 |
RAID information | .1.3.6.1.4.1.8072.1.3.2 |